DTC Troubleshooting: U0155 (107-3)
DTC U0155:
 F-CAN Malfunction (TCM Lost Communication with Gauge Control Module)
  1. Turn the ignition switch to ON (II).
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0).
  1. Turn the ignition switch to ON (II).
  1. Check for DTCs with the HDS.
Is DTC U0155 indicated?
YES -
Go to Step 6 .
NO -
Intermittent failure, the system is OK at this time.■
  1. Check for DTCs with the HDS.
Are DTC U0100, U0103, and U1261 indicated?
YES -
Go to Step 7 .
NO -
Go to Step 12 .
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the gauge control module (tach) 36P connector.
  1. Disconnect the clutch actuator subharness 10P connector from the engine compartment wire harness.
  1. Connect gauge control module (tach) 36P connector terminal No. 1 (No. 19) * and body ground with jumper wires.
    *: CANL